probably easier for a school child to understand, put this way
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A '''whole number''' is an [[integer]] that is non-negative (i.e. either [[positive]] or [[zero]]). A non-zero whole number is called a [[counting number]].s
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A '''whole number''' is an [[integer]] that is either [[positive]] or [[zero]] (i.e., non-negative). A non-zero whole number is called a [[counting number]].s